Portable dark room



(Model.)

J. SERDINKD.

PORTABLE DARK ROOM.

No.v254,392. Patented Feb.28, 1882.

INVENTGR WITNESSES @Wa/@d4 aia/Av ORNEYS.

UNITED STATES PATENT OFFICE.

JOHN SERDINKO, OF NEV BRAUNFELS, TEXAS.

PORTABLE DARK ROOM.

SPECIFICATION forming part of Letters Patent No. 254,392, dated February28, 1882.'

Application tiled December 22, i881.

' Braunfels, Comal county, Texas, have invented a new and ImprovedPortable Dark Room for Dry Photographng-Pla-tes, of which the followingis a full, clear, and exact description.

The object of' my invention is to provide a new and improved portabledark room for dry photographing-plates, in which the plates can hetransferred to and from the plate-holder of the camerabox without beingexposed either to light or dampness.

The invention consists in a box provided with an opening in one side anda sleeve of pliable material lextending outward from this opening, whichbox contains two smallel` boxes for receiving the exposed and nnexposeddry plates. The box is provided with a handle for carrying it.

Reference is to be had to the accompanying drawings, forming part ofthis specication, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 isa perspective view ot' my improved portahledark roomfordryphotographic plates. Fig. 2 is a longitudinal sectional elevationof the same on the line y y, Fig. 3. Fig. 3 is a cross sectionalelevation ot' the same on the line w, Fig. 2.

The box A is covered with oil-cloth, leather, cloth, or other suitablematerial, and is surrounded by two straps, B, connected by a handle, C,for carrying the box. It' desired, this handle can be attached directlyto the box.

One of the sides of the box A is provided with an aperture, D, fromwhich a lexible sleeve, E, of oil-cloth, cloth, leather, or othersuitable material, projects t'roin theI box.

The opening D and the sleeve E must be of such size as to permit theplate-holding frame of the camera to be passed through this sleeve andopening into the box A. rI wo compartments or boxes, H H', provided withswinging or other lids, F F', are located in the box A,

(Model.)

one of these compartments or boxes being at each end of the box A. Oneof these compartments-for instance H-contains dry plates that have notbeen exposed to the action of light, andthe other compartment, H',contains the exposed dry plates.

The box A is preferably provided with transverse strips G on the bottom,so that the box can be placed on the ground without being moistened orsoiled.

The operation is as follows: The operator passes the plate-holding frameot' the camera through the sleeve E into the box A, opens the frame, anddeposits the exposed dry plates in the box H', and takes a fresh platefrom the box H and places itinto the plate-holder, which is thenwithdrawn. 1n this manner the plates can be placed in and removed fromthe plateholder without being exposed to light or dampness. Vhilemanipulating the plates with one hand the sleeve is pressed against thearm with the other hand, so that no light can pass into the box byaccident. A large quantity ot' dry plates can be transported in the boxA very conveniently, and the portable dark room thus also serves as areceptacle for transporting the plates. The box A can be made in varioussizes corresponding to the various sizes of the plates.

Having thus descr ibed my invention, I claim as new and desire to secureby Letters Patent- A box having the aperture D, the tlexible sleeve E,projecting from the inside ot' said aperture, and the end compartments,H H', provided with swinging lids, as shown and described, whereby theinside may form a dark chamber, in which the plates may be transferredfrom and to the plate-holder of the camera without being exposed eitherto light or dampness.

JOHN SERDINKO. Witnesses:

S. H. HoL'rz, H. E. MEYER.

